Improvement in car-couplings



UNTTED STATES PATENT @triomf l'lliISllA T. .l3Altli()\V, 0F SAN FHANUJSUO, I YALIFORNIA.

iMPno'vEMENT iN CAPtfCQUPLiNGs'."

Bpe'cihc'aiion' toii'iiii'igpart otllettei'siitcnt No. 39,373, dated August ll, 1862i.

To all whom 'it 'may concern Be it known that I, ELisiiA T. BAnLow, of.

San Francisco, in the count-y of San Francisco and State of California, have invented a new and ImprovedSeliacting Car-Coupling; and 1 do hereby declare that the following is a full,

clear, and exact description et the saine, refer-"i or use of a tongue fitted in each draw-head, Y

and provided with two slots or openings,an oscilla-ting adjustable pin, and a piinelevating plate, all arranged in such a manner that the two draw-heads, when they come vin contact, will be.coupled together, and the draw-heads rendered capable of being very readily unconpled when desired.

` l,To enable'those skilled vin the art to fully i understand and construct iny invention, I will proceed to describe it.

. A A represent two drawheads,\which may approximate to the form ot those' in gen/eral use, with the exception that the front parts.

ot` the lower plates, G, are inclined, as shown at a, said inclined parts projecting downward from their back lo their front ends, as shown clearly in Fig. 1. These inclined parts a extendback from seven toten inches from the heads C of the draw-heads, and the openings in .the heads C may be from six to seven inches I square, larger or sinaller'in propbrtion to the draw-heads as occasion may require. 'In each draw-head thereissecured a horizontal tongue, B. These tongues are secured at their back ends to the lower plate, G, of the drew-heads by bolts H, or in -aiiy other proper manner,

and the outer ends of the tongues are rounded -i'n semicircular forni and beveled to forni a.

sharp edge, so as to prevent the ends of the tongues. troni striking against each other, or rather to canse them to slip-past one over the other when they come in con tact. 'From three to six inches from the ends of the tongues l enclin-ll to ionr and one-lialt'inclies in length7 and troni two'and one-halt' to three and oneliali" inches in width. From two and one-half inches to three and oiie-lialf inches frointhe niortises lf there are inadc otlier`iiiortises, F', ofthe saine size as the others, F. These latter vmay be termed the drat't-iiiortises, and their front edges should be in line with the inner sides ofthe heads C otf the draw-heads. The tongues B niay he troni twenty to thirty inches in length, and l'roin three-fourths ot' anv inch t0 one and a quarter inch'in thickness, and froin four to si x-inches in width, as may be required, and a spring, 0,01 elastic projec tion may-lie attached to the inner end'of eachtoiigue l. The draw-heads A' A may be from two to three feet in length, as required.

D l) represent oscillating pins, the upper ends of which are connected by joints I) to the iront ends ct' springs A". These pins may be from four to six inches in length, and one and one-halt' to two and one-halt' inches in width,-` .and from three-fourths of one inch to one and one-halt' inch in thickness. The length of the pins l) is governed by the distance frein thejoints b to the lower surfaces ol thc tongues B, iiotr'eacliing below. `When the springs A;`r

"are down and thc'tongucs B in their natural position, the pins D are rather wider at their lower than at their upper ends, `and they are allowed to swing freely by ineans of their joints b, so that they niay drop into the iiior tises F F as the two draw-heads coine in contact. The .springs N* inay be troni eight to lit'tee'n inches in length, and troni-two to two and one-halt' inches in width. These springs may be iliade of spiral fornr,jif desired; but l prefer the dat Qsprings representedv in the drawings. ll'icse springs are secured attheir back ends to the upper plates, G of the drewlicadsby bolts c, and said-'springs adinit ot the pins D dropping through slots d in said .plates G. A

This coupling-is detached by'placing niidcr the front parts of the spring AX plates E, the ends ot' which are provided with -pivots or `iournals, the latter being iitted in eyes c on the plates G. llnch plate is provided with it iiaii'dle, f, for turning it and lifting thepins l).-

The plates l, ot' course, iiiust be ot" sutiicient width to lit't the` pins l) l'ree troni the inoitises there is an oblong mort-isc, F, from three and i in the tongues l.

Having thus deeeribed my invention, what I all arranged to operate as and for the purpose claim as new, and desire t0 secure by Letters herein set forth.

-mul fitted in thedmw-headsAA,in eombjnnf Vitnesses: y l

tion with the oscillating pins D, connected to ALEXANDER WARFIELD,

springs AX, and the pin-elevating plates E, l. B. CORNWALL. 

